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T-Mobile reached a $90 million settlement with the Federal Trade Commission over "mobile cramming" practices.

The Consumer Financial Protection Bureau’s lawsuit against Sprint creates a larger regulatory footprint on the mobile payments space.

CEO John Legere's announcement comes after T-Mobile was the only mobile carrier to add customers in Q3 of 2014.

Heavy competition among carriers is leading to a bevy of discount plans.

The carrier's latest family plan offers unlimited data, a rarity in the industry.

Now the mobile carrier's customers will be able to see accurate "throttled" connection speeds.

Samsung's new smartwatch will require a $5-per-month service plan to be useful.

T-Mobile saw its best quarter ever in terms of customer growth, but that didn't help the carrier's bottom line.

T-Mobile pioneered installment plans with its Simple Choice option. Experts say payment plans could soon be standard for all carriers.

The wireless carrier missed estimates and cut its annual revenue forecast, but bets iPhone sales will help in Q4.

The company's mobile ad business stands to be on par with Twitter's.

While Iliad's approach had been widely perceived as a long shot, its formal withdrawal sent shares of the U.S. carrier to a 10-month low.

The deal with the Federal Trade Commission has AT&T reimbursing customers for unwanted "premium text message services."

French telecommunications company Iliad is preparing to offer a larger stake in T-Mobile US Inc.

Prospective customers will be able to test out the iPhone 6 on T-Mobile's network, some time in the future.

There's stiff competition between U.S. mobile networks, but which carrier will sell the most iPhones?

Walmart is offering $20 off the iPhone 6 and iPhone 6 Plus.

Planning on purchasing a new smartphone this September? Here are 11 ways to get the cheapest price on your new investment.

Which upcoming smartphone are you planning to buy? Your mobile network likely won't influence your decision.

New figures indicate Verizon maintains the best mobile network quality but it is dropping.

Sprint's new CEO Marcelo Claure promises new competitive rates on the mobile network.

Tech helps the Ice Bucket Challenge go viral.

A T-Mobile internal memo shows that the carrier intends to slow down data connections of users who abuse their unlimited 4G LTE data plans.

T-Mobile's prepaid price structure is the cheapest in the nation among major carriers.

T-Mobile subscribers can now use the network's device unlock app.

T-Mobile CEO says carrier will be larger than Sprint by the end of the year.

Sprint Corp. shares tumbled on Wednesday after the company announced it was ending its bid to acquire T-Mobile US Inc.

With Sprint and T-Mobile now on their own, the carriers face more hurdles as they battle it out in the competitive wireless market.

T-Mobile CEO John Legere takes to Twitter following the announcement of Sprint's new CEO, Marcelo Claure.